diff options
Diffstat (limited to 'interrupts.h')
-rw-r--r-- | interrupts.h | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/interrupts.h b/interrupts.h deleted file mode 100644 index e9ade80..0000000 --- a/interrupts.h +++ /dev/null @@ -1,128 +0,0 @@ -#ifndef RPI_MMU_EXAMPLE_INTERRUPTS_H -#define RPI_MMU_EXAMPLE_INTERRUPTS_H - -#include <stdint.h> - - //offset of peripherals+ offset for first addresable register for interupt controller -#define RPI_INTERRUPT_CONTROLLER_BASE ( 0x3F000000UL + 0xB200 ) - -// Bits in the Enable_Basic_IRQs register to enable various interrupts. -// According to the BCM2835 ARM Peripherals manual, section 7.5 */ - -#define RPI_BASIC_ARM_TIMER_IRQ (1 << 0) -#define RPI_BASIC_ARM_MAILBOX_IRQ (1 << 1) -#define RPI_BASIC_ARM_DOORBELL_0_IRQ (1 << 2) -#define RPI_BASIC_ARM_DOORBELL_1_IRQ (1 << 3) -#define RPI_BASIC_GPU_0_HALTED_IRQ (1 << 4) -#define RPI_BASIC_GPU_1_HALTED_IRQ (1 << 5) -#define RPI_BASIC_ACCESS_ERROR_1_IRQ (1 << 6) -#define RPI_BASIC_ACCESS_ERROR_0_IRQ (1 << 7) - -// @brief The interrupt controller memory mapped register set -typedef struct { - volatile uint32_t IRQ_basic_pending; - volatile uint32_t IRQ_pending_1; - volatile uint32_t IRQ_pending_2; - volatile uint32_t FIQ_control; - volatile uint32_t Enable_IRQs_1; - volatile uint32_t Enable_IRQs_2; - volatile uint32_t Enable_Basic_IRQs; - volatile uint32_t Disable_IRQs_1; - volatile uint32_t Disable_IRQs_2; - volatile uint32_t Disable_Basic_IRQs; -} rpi_irq_controller_t; - -extern rpi_irq_controller_t* RPI_GetIrqController(void); - -//TIMER - -/*--------------------------------------------------------------------------} -{ LOCAL TIMER INTERRUPT ROUTING REGISTER - QA7_rev3.4.pdf page 18 } -{--------------------------------------------------------------------------*/ -typedef union -{ - struct - { - enum { - LOCALTIMER_TO_CORE0_IRQ = 0, - LOCALTIMER_TO_CORE1_IRQ = 1, - LOCALTIMER_TO_CORE2_IRQ = 2, - LOCALTIMER_TO_CORE3_IRQ = 3, - LOCALTIMER_TO_CORE0_FIQ = 4, - LOCALTIMER_TO_CORE1_FIQ = 5, - LOCALTIMER_TO_CORE2_FIQ = 6, - LOCALTIMER_TO_CORE3_FIQ = 7, - } Routing: 3; // @0-2 Local Timer routing - unsigned unused : 29; // @3-31 - }; - uint32_t Raw32; // Union to access all 32 bits as a uint32_t -} local_timer_int_route_reg_t; - -/*--------------------------------------------------------------------------} -{ LOCAL TIMER CONTROL AND STATUS REGISTER - QA7_rev3.4.pdf page 17 } -{--------------------------------------------------------------------------*/ -typedef union -{ - struct - { - unsigned ReloadValue : 28; // @0-27 Reload value - unsigned TimerEnable : 1; // @28 Timer enable (1 = enabled) - unsigned IntEnable : 1; // @29 Interrupt enable (1= enabled) - unsigned unused : 1; // @30 Unused - unsigned IntPending : 1; // @31 Timer Interrupt flag (Read-Only) - }; - uint32_t Raw32; // Union to access all 32 bits as a uint32_t -} local_timer_ctrl_status_reg_t; - -/*--------------------------------------------------------------------------} -{ LOCAL TIMER CLEAR AND RELOAD REGISTER - QA7_rev3.4.pdf page 18 } -{--------------------------------------------------------------------------*/ -typedef union -{ - struct - { - unsigned unused : 30; // @0-29 unused - unsigned Reload : 1; // @30 Local timer-reloaded when written as 1 - unsigned IntClear : 1; // @31 Interrupt flag clear when written as 1 - }; - uint32_t Raw32; // Union to access all 32 bits as a uint32_t -} local_timer_clr_reload_reg_t; - -/*--------------------------------------------------------------------------} -{ GENERIC TIMER INTERRUPT CONTROL REGISTER - QA7_rev3.4.pdf page 13 } -{--------------------------------------------------------------------------*/ -typedef union -{ - struct - { - unsigned nCNTPSIRQ_IRQ : 1; // @0 Secure physical timer event IRQ enabled, This bit is only valid if bit 4 is clear otherwise it is ignored. - unsigned nCNTPNSIRQ_IRQ : 1; // @1 Non-secure physical timer event IRQ enabled, This bit is only valid if bit 5 is clear otherwise it is ignored - unsigned nCNTHPIRQ_IRQ : 1; // @2 Hypervisor physical timer event IRQ enabled, This bit is only valid if bit 6 is clear otherwise it is ignored - unsigned nCNTVIRQ_IRQ : 1; // @3 Virtual physical timer event IRQ enabled, This bit is only valid if bit 7 is clear otherwise it is ignored - unsigned nCNTPSIRQ_FIQ : 1; // @4 Secure physical timer event FIQ enabled, If set, this bit overrides the IRQ bit (0) - unsigned nCNTPNSIRQ_FIQ : 1; // @5 Non-secure physical timer event FIQ enabled, If set, this bit overrides the IRQ bit (1) - unsigned nCNTHPIRQ_FIQ : 1; // @6 Hypervisor physical timer event FIQ enabled, If set, this bit overrides the IRQ bit (2) - unsigned nCNTVIRQ_FIQ : 1; // @7 Virtual physical timer event FIQ enabled, If set, this bit overrides the IRQ bit (3) - unsigned reserved : 24; // @8-31 reserved - }; - uint32_t Raw32; // Union to access all 32 bits as a uint32_t -} generic_timer_int_ctrl_reg_t; - -struct __attribute__((__packed__, aligned(4))) QA7Registers { - local_timer_int_route_reg_t TimerRouting; // 0x24 - uint32_t GPIORouting; // 0x28 - uint32_t AXIOutstandingCounters; // 0x2C - uint32_t AXIOutstandingIrq; // 0x30 - local_timer_ctrl_status_reg_t TimerControlStatus; // 0x34 - local_timer_clr_reload_reg_t TimerClearReload; // 0x38 - uint32_t unused; // 0x3C - generic_timer_int_ctrl_reg_t Core0TimerIntControl; // 0x40 - generic_timer_int_ctrl_reg_t Core1TimerIntControl; // 0x44 - generic_timer_int_ctrl_reg_t Core2TimerIntControl; // 0x48 - generic_timer_int_ctrl_reg_t Core3TimerIntControl; // 0x4C -}; -#define QA7 ((volatile __attribute__((aligned(4))) struct QA7Registers*)(uintptr_t)(0x40000024)) -//40000040 - -int enable_timer(void); -#endif //RPI_MMU_EXAMPLE_INTERRUPTS_H |